Grab an Allo product or similar that implements an rpi. Use Volumio/moode/picore player as the OS and see how you get on with it.
If you hate it anything you have spent will be easily recouped as they rarely come up for resale. However you will more than likely love it.
Ive got an Allo Digione but am considering moving to an Allo Katana. The digione is good if you have a dac you love and the Katana is an all in one jobbie with a dac attached.
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Current system:
RPi + Allo Digione
Beresford Caiman Seg & Dorado powered by 15v Linear PSU
Transcendent Sound Mini Beast OTL
Amptastic Mini-1
Klipsch KG4.5 Speakers with Titanium Diagphrams and Sonicap Cap upgrade
110aH Leisure Battery powers the Mini-1 & Digione